X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Fri, 06 May 2005 08:34:20 -0400 Message-ID: X-Original-Return-Path: Received: from imo-m27.mx.aol.com ([64.12.137.8] verified) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 934148 for lml@lancaironline.net; Thu, 05 May 2005 20:30:56 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.8; envelope-from=Sky2high@aol.com Received: from Sky2high@aol.com by imo-m27.mx.aol.com (mail_out_v38_r1.7.) id q.c1.57e4d27c (4238) for ; Thu, 5 May 2005 20:30:09 -0400 (EDT) From: Sky2high@aol.com X-Original-Message-ID: X-Original-Date: Thu, 5 May 2005 20:30:09 EDT Subject: Re: [LML] fuel flow transducer X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1115339409" X-Mailer: 9.0 Security Edition for Windows sub 5000 -------------------------------1115339409 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 5/5/2005 9:17:55 A.M. Central Standard Time, genemartin@enid.com writes: HI all,I bought a jpi edm at OSH. last year but didn't instal the fuel flow antisapating a forward sump mod over the winter, well the mod is nearly done and now it's time.JPI instructions say it should mount in the hose between engine driven fuel pump and servo,however I often see these in the metered hose at the flow divider inlet, I was also told it is best to have as much straight hose as possable on each side of transducer {no 45 or 90 degree fittings} Is one location prefered, IT looks difficult to do the straight thing on top of the engine. Gene, OK, believe all those claims that straight lines before and after the flow sensor count! But listen up grasshopper - it is the interface that counts. What? Blasphemy! Yes, if one is going to use the throttle body to spider flow to measure gph, you have chosen the correct path and will be rewarded with accurate information. Yes, accurate if all absurdities are considered - take, for example, the reducer that allows -4 lines to operate thru the -6 sensor. If you select the -4 flare to -6 pipe for the input side, disaster will follow. If you choose a -4 to -6 reducer, success will stick to you like peanut-butter to the roof of your mouth. Why? One might ask. 'Cause the flare to pipe thread adapter has a small hole which produces horrible turbulence, whilst the reducer just provides a large exit hole for the fluid and any turbulence effect is eliminated. Note that all the twists and turns of the flow towards the sensor are nullified by the adapter to sensor interface. Trust me, been there, done that. Success has been found by those that mount the sensor horizontally or vertically, as long as the flow is coherent into the sensor. Adaptrers matter! Scott Krueger AKA Grayhawk Lancair N92EX IO320 SB 89/96 Aurora, IL (KARR) Fair and Balanced Opinions at No Charge! Metaphysical Monologues used at your own Risk. -------------------------------1115339409 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

In a message dated 5/5/2005 9:17:55 A.M. Central Standard Time,=20 genemartin@enid.com writes:

<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>

HI all,I bought a jpi edm at OSH. l= ast year=20 but didn't instal the fuel flow antisapating a forward sump mod over= the=20 winter, well the mod is nearly done and now it's time.JPI instructions say= it=20 should mount in the hose between engine driven fuel pump and=20 servo,however I often see these in the metered hose at the flo= w=20 divider inlet, I was also told it is best to have as much straight hose as= =20 possable on each side of transducer {no 45 or 90 degree=20 fittings} Is one location prefered, IT looks difficult to do t= he=20 straight thing on top of the=20 engine.

Gene,

OK, believe all those claims that straight lines before and after the f= low=20 sensor count! But listen up grasshopper - it is the interface that=20 counts.

What? Blasphemy!

Yes, if one is going to use the throttle body to spider flow to measure= =20 gph, you have chosen the correct path and will be rewarded with accurate=20 information. Yes, accurate if all absurdities are considered - take, f= or=20 example, the reducer that allows -4 lines to operate thru the -6=20 sensor. If you select the -4 flare to -6 pipe for the input side= ,=20 disaster will follow. If you choose a -4 to -6 reducer,=20 success will stick to you like peanut-butter to the roof of your mouth.

Why? One might ask.

'Cause the flare to pipe thread adapter has a small hole which=20 produces horrible turbulence, whilst the reducer just provides a large exit=20= hole=20 for the fluid and any turbulence effect is eliminated.

Note that all the twists and turns of the flow towards the sensor are=20 nullified by the adapter to sensor interface. Trust me, been there, do= ne=20 that.

Success has been found by those that mount the sensor horizontally or=20 vertically, as long as the flow is coherent into the sensor. Adaptrers= =20 matter!

Scott Krueger=20 AKA Grayhawk
Lancair N92EX IO320 SB 89/96
Aurora, IL (KARR)

Fai= r=20 and Balanced Opinions at No Charge!
Metaphysical Monologues used at your=20= own=20 Risk.

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